JP2003285061A - Electrolytic water producing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrolytic water producing apparatus capable of responding to demands of providing electrolytic water with high acidity (or alkalinity) and electrolytic water with lower acidity (or alkalinity) than that. <P>SOLUTION: The electrolytic water producing apparatus is provided with an outer cylinder 1 having a first electrode 7 inside thereof, an inner cylinder 14 arranged inside the outer cylinder 1, forming a duct (electrolytic cell A) between the outer cylinder 1, having a second electrode 20 at the upper part inside thereof, arranging an electrolyte C at the lower part and having a diaphragm 27 at the upper part of a sidewall, and a discharge port 2c provided in the outer cylinder 1 in order to discharge the produced electrolytic water to the outside of the apparatus. A position of the upper end of the first electrode 7 makes higher than that of the discharge port 2c, and higher than a water level H1 between the outer cylinder 1 and the inner cylinder 14. As a result, acid water which is high in chlorine concentration, a little larger in pH and low in acidity is produced, and the electrolytic water can be discharged to the outside through the discharge port 2c. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolyzed water production apparatus for electrolyzing while supplying tap water or water supplied from a water storage tank to produce acidic water or alkaline water.

[0002]

2. Description of the Related Art In this type of electrolyzed water producing apparatus, a cylindrical first electrode is disposed inside an outer cylinder, and electrolyzed water produced at a position higher than the upper end of the first electrode is discharged to the outside. A discharge port is provided. A cartridge provided with a diaphragm and a second electrode on a concentric circle is arranged inside the first electrode, and sodium chloride (salt) is accommodated inside the cartridge.

The operation of the electrolyzed water producing apparatus having the above structure is as follows.
When water is passed between the outer cylinder and the cartridge with a positive voltage applied to the first electrode (anode) side and a negative voltage applied to the second electrode (cathode) side, the salt in the cartridge is electrolyzed and sodium (Na ) And chlorine atom (Cl),
Ions move through the diaphragm, chlorine ions (Cl ⁻ ) in the cartridge are attracted to the first electrode side, and the generated acidic water is discharged from the discharge port to provide electrolyzed water to the user. ing.

Further, by adjusting the residence time of the electrolysis of water, chlorine ions (Cl ^-) is atmosphere containing oxygen (O ₂₎ and after binding, chlorine peroxide reacts with the hydrogen ions (H ⁺⁾ Therefore, the residual chlorine concentration of the electrolyzed water increases due to the generation of hypochlorous acid. That is, the chlorine concentration in this strongly acidic electrolyzed water rises in proportion to the time for electrolysis.

Further, the pH (hydrogen ion concentration) of the electrolyzed water varies depending on the concentration of hydrogen ions (H ⁺ ) generated by the electrolysis of water and hydrogen ions (H ⁺ ) partially dissociated from chlorine peroxide. Since the pH is determined, the electrolyzed water tends to be smaller when the inner surface and the outer surface of the first electrode (anode) are in contact with each other over a wider area, and the residual chlorine concentration tends to be greater when the electrolysis time is longer. There is.

Therefore, if the discharge port is provided at a position higher than the upper end of the first electrode, the water level becomes higher than the upper end of the first electrode, and electrolyzed water having a low pH and a high acidity can be obtained.

[0007]

However, the manufacturer of the electrolyzed water production apparatus provides a production apparatus capable of obtaining electrolyzed water having a high acidity (or alkalinity) as described above in consideration of consumers' demands. Not only that, it is also desired to provide a production apparatus that can obtain electrolyzed water having a lower acidity (or alkalinity) than this.

[0008] Therefore, the present invention provides an electrolyzed water production apparatus which can meet the demands for obtaining electrolyzed water with high acidity (or alkalinity) and electrolyzed water with lower acidity (or alkalinity). The purpose is to provide.

[0009]

Therefore, the first invention is
In an electrolyzed water manufacturing apparatus that electrolyzes to generate acidic water or alkaline water while passing tap water or water supplied from a water storage tank, an outer cylinder having a first electrode inside, and an outer cylinder inside the outer cylinder. An inner cylinder having a flow path formed between the outer cylinder and the outer cylinder, a second electrode provided inside the upper cylinder, an electrolyte arranged below, and a diaphragm provided on an upper side wall, and the generated electrolyzed water outside the apparatus. The discharge port provided in the outer cylinder for discharging to the upper side and the position of the upper end of the first electrode are higher than the discharge port and higher than the water level between the outer cylinder and the inner cylinder.

The second invention is an electrolyzed water producing apparatus for electrolyzing to produce acidic water or alkaline water while passing tap water or water supplied from a water storage tank.
A flow path is formed between an outer cylinder provided with an electrode and the outer cylinder arranged in the outer cylinder, a second electrode is provided above the inside, an electrolyte is provided below, and a diaphragm is provided on an upper side wall. The inner cylinder and the position of the upper end of the first electrode above the discharge port, the water level between the outer cylinder and the inner cylinder above the upper end of the first electrode, and above the upper end of the first electrode. A water discharge port plate for supplying electrolyzed water to the discharge port is provided between the outer cylinder and the inner cylinder.

A third invention is characterized in that the water discharge plate is provided inside the outer cylinder.

[0012]

DETAILED DESCRIPTION OF THE INVENTION A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an electrolyzed water producing apparatus of the present invention, in which 1 is an outer cylinder upper portion 2 and an outer cylinder lower portion 3
It is an outer cylinder formed by fittingly connecting and is made of a synthetic resin material.

The outer cylinder upper part 2 has a hollow cylindrical shape, and a fitting receiving part 2a for inserting and fitting a fitting cylindrical part 15a provided on a lid 15 described later is provided on the inner side of the upper part thereof, and the lower end thereof is provided with the fitting receiving part 2a. A stepped connecting portion 2 having a small diameter for connecting the lower portion 3 of the outer cylinder.
b is provided. Further, a discharge cylinder portion 2d provided with a discharge opening 2c for discharging the electrolyzed water generated inside is formed above the side plate portion of the outer cylinder upper portion 2 and will be described below above the discharge opening 2c. Each mounting hole 2e through which each screw 4 as a fixing means for fixing the first electrode 7 is provided. Reference numeral 2f is a narrowed portion having a smaller diameter than the first electrode 7, and has a smaller diameter in order to reduce the amount of stored water that is not involved in electrolysis.

The upper end connecting portion 3a of the outer cylinder lower portion 3 has a stepped shape with its inner diameter widened, and is integrated with the connecting portion 2b of the outer cylinder upper portion 2 by fitting and then bonding. 3b is a bottom plate portion 3 of the lower portion 3 of the outer cylinder.
It is a drainage tube fitting portion as a cylindrical first annular wall provided for removably fitting the outer periphery of the fixed portion 28 in the inner cylinder 14 described later at the center of the c via the seal packing 5. .

The upper end circumferential portion of the drainage pipe fitting portion 3b abuts on the bottom surface portion 17a of the inner cylinder 14 to be described later, so that there is a space between the bottom surface portion 17a and the bottom plate portion 3c of the outer cylinder 1. B is formed. The space B forms an electrolyzed water generation passage for passing water supplied from the electrolysis water supply unit 3g described later to the electrolysis tank A.

Reference numeral 3d is a drainage connection portion for connecting a rubber hose or the like in order to discharge excess water in the inner cylinder 14 described later to the outside. Reference numeral 3e designates a water pipe fitting portion as a cylindrical second annular wall provided on the outer circumference of a concentric circle with the drain pipe fitting portion 3b. Inside the fitting portion 3e, a water supply wall 17c of an inner cylinder 14 described later is provided. The outer circumference of is fitted and connected via a seal packing 6. Reference numeral 3f is a cylindrical water supply connection portion for connecting a rubber hose or the like for supplying water into the inner cylinder 14 described later. 3 g is a water supply portion for electrolysis, which is integrally formed in a cylindrical shape downward in the bottom plate portion 3 c. The electrolysis tank A formed between the outer cylinder 1 and the inner cylinder 14 has tap water or stored water for generating electrolytic water. A rubber hose for supplying water from the tank is connected.

Reference numeral 3h denotes a vertically long rib integrally formed on the lower portion of the inner peripheral surface of the lower portion 3 of the outer cylinder, for example, at four positions at approximately 90 ° in a top view.
When the inner cylinder 14 is inserted, which will be described later, the outer cylinder 1 and the inner cylinder 1 can be smoothly guided to a predetermined position by contacting the outer peripheral surface thereof.
It is provided to secure an electrolytic water supply passage between the four. The rib 3h forms an electrolytic cell A as an electrolyzed water generation passage between the outer peripheral surface of the inner cylinder 14 and the inner peripheral surface of the outer cylinder 1.

In FIG. 2, reference numeral 7 denotes a hollow cylindrical first electrode made of titanium, platinum, or an alloy of titanium and platinum. Reference numeral 8 is a support angle as a support means of the first electrode 7 made of titanium or the like, which is a conductive material and has a crank shape in cross section and is acid-resistant or alkali-resistant, and one end of which is fixed to the upper portion of the first electrode 7 by welding. , The other end is a seal on the side plate portion of the outer cylinder 1, such as a terminal 10, a washer 11, rubber, etc. as a power source connecting means provided at the tip of a lead wire 9 for supplying power to the first electrode 7 with a screw 4 from the outside. With the agent 12 interposed, the mounting hole 2e is penetrated and fixed with a nut 13. Although the support angles 8 are fixed to the first electrode 7 at four positions, the number is not limited to this and may be an appropriate number.

Next, as shown in FIG. 3, 14 is an inner cylinder which integrally connects a lid 15, a diaphragm mounting portion 16 and a housing portion 17 for housing an electrolyte therein. The outer cylinder 1 is detachably arranged from above. A lid 1 for closing an upper surface opening of the outer cylinder 1 is provided on an upper portion of the inner cylinder 14.
5 is detachably provided, and further, a lid 15 and a diaphragm mounting portion 1
6 or a structure in which the diaphragm mounting portion 16 and the accommodating portion 17 can be separated and removed (for example, a structure in which threads are mutually formed to be removable), so that the lid body 15 and the inner cylinder 14 can be removed. After detaching from the cylinder 1 and taking out, the septum mounting portion 16 from the lid 15 or the accommodating portion 17 from the septum mounting portion 16.
After removing, the nut 26 is removed so that the electrolyte C inside and the second electrode 20 can be easily cleaned and replaced. It should be noted that the inner cylinder 14 and the lid 15 may not be detachable, the lid 15 and the diaphragm mounting portion 16 may not be detachable, or the diaphragm mounting portion 16 and the accommodating portion 17 may be detachable. It may be a structure that does not become. The inner cylinder 14 has a double structure with the outer cylinder 1, and a space between the inner cylinder 14 and the electrolytic cell A that forms an electrolytic water generation passage for passing water is formed between them.

Reference numeral 15a denotes a cylindrical fitting cylinder portion integrally formed below the outside of the lid body 15, and is inserted into the fitting receiving portion 2a of the outer cylinder 1 by reducing the outside diameter so as to hang downward. Also, the fitting is facilitated and fixed, and as described above, the inner cylinder 14 is detachably mounted in the outer cylinder 1 from above. Although not shown, a fitting portion between the outer peripheral portion of the fitting cylindrical portion 15a and the inner peripheral portion of the fitting receiving portion 2a is formed with a screw thread so as to be attachable and detachable, or through a screw (not shown). It may be detachably fixed.

Further, a cylindrical operation knob 15b having a substantially convex cross-section is provided at the center of the lid body 15 so that the inner cylinder 14 can be easily attached to and detached from the outer cylinder 1 by holding the operation knob 15b. ing.

Reference numeral 18 denotes the fitting receiving portion 2a and the fitting tubular portion 15a.
This is a seal packing for sealing the inside of the electrolyzed water and the like so as not to leak outside during the fitting.

Reference numeral 15c is a support groove provided in the center of the operation knob 15b in a substantially concave shape in a sectional view, and a bolt 21 as an electrode support member for suspending and supporting a second electrode 20 described later is passed through the center of the support groove 15c. A through hole 15d for that is provided. The supporting groove 15c covers the second electrode 20 which will be described later.
The nut 26 fixed to the bottom is embedded in the operation knob 15b of the lid body 15 to improve the appearance and the bolt 21.
The nut 26 prevents injury.

Reference numeral 15e is a wiring groove for disposing a lead wire 19 for supplying power to a second electrode 20 described later in the support groove 15c.

Reference numeral 15f is a cylindrical electrode support portion integrally formed below the support groove 15c, and the lower end peripheral edge thereof is fitted to the bolt 21 while being in contact with the upper surface portion 20a of the second electrode 20 described later. It is fixed by a mating nut 26.

Reference numeral 20 is a second electrode formed in a cylindrical shape using a material such as graphite or activated carbon, and a support hole through which the bolt 21 penetrates is formed in the center of the upper surface portion 20a and the center of the bottom plate portion 20b. . The bolt 21 is made of stainless steel or the like that is corrosion resistant (acid resistant and alkali resistant) and is a conductive material, and one end 21b of the bolt 21 forms a nut portion and abuts and fixes it on the bottom plate portion 20b of the second electrode 20. At the same time, the other end 21a is fixed to the lid body 15.

The other end 21a of the bolt 21 has a second electrode 20a.
Of the second electrode 20 until the nut portion of the one end 21b of the bolt 21 abuts on the bottom plate portion 20b of the second electrode 20. The second electrode 20 is fixed by the nut 23 from the upper surface portion 20a side of the electrode 20 via the washer 22. Next, the other end 21a side of the bolt 21 is attached to the electrode supporting portion 15
f of the bolt 21 while being inserted from the lower hole 15g side, protruding from the through hole 15d into the support groove 15c, and inserted to a position where the upper surface portion 20a of the second electrode 20 and the lower end peripheral edge of the electrode supporting portion 15f abut. The second electrode 20 is fixed to the lid body 15 by a nut 26 via a washer 24 and a terminal 25 as a power source connecting means for connecting a power source from the lead wire 19 to the tip of the other end 21a.

Therefore, the other end of the bolt 21 supporting the second electrode 20 penetrates through the electrode supporting portion 15f and the lid 15 is formed.
The second electrode 20 is suspended and fixed in the inner cylinder 14 by being fixedly fixed to the inner cylinder 14.

The diaphragm mounting portion 16 is provided with openings 16a opened in various shapes such as a square, a circle, and an ellipse having a predetermined area according to the electrolysis capacity, and the outer surface or the inner surface of the mounting portion 16 is provided. Has a diaphragm 27 between the first electrode 7 and the second electrode 20 that causes ions to move during electrolysis, and is attached by an adhesive or by insert formation. Also,
By installing the septum 27 divided into two parts, it is possible to perform the positioning easily and to install without sagging, so that an efficient installation work can be performed.

The accommodating portion 17 is a cylindrical container having a bottom, and accommodates an electrolyte C below the second electrode 20 for generating electrolyzed water by electrolysis between the first electrode 7 and the second electrode 20. To do.

Reference numeral 28 is a fixing portion for fixing a drain pipe 29 inserted in a mounting hole 17e opened at the center of the bottom portion 17a of the accommodating portion 17 by adhesion or the like, and the lower part of the drain pipe 29 has its outer periphery at the drain pipe fitting portion. 3b and the packing 5 are detachably fitted and connected.

The drain tube 29 is made of a synthetic resin material in the shape of a hollow cylinder, and the upper end of the drain tube 29 has an opening 29a as a drain port of the inner tube 14 between the second electrode 20 and the diaphragm 27. It is bent so that it is arranged.

Furthermore, the position of the drain port 29a at the upper end is set to be substantially the same height as the upper ends of the first electrode 7, the second electrode 20 and the diaphragm 27, and this position is the amount of water required for electrolysis. While maintaining the above, the unnecessary water is discharged to the outside of the device when the water is supplied more.

As the electrolyte C, a chloride compound such as sodium chloride, potassium chloride, calcium chloride or magnesium chloride or a sulfide compound such as sodium sulfate or calcium sulfate can be used. In the present embodiment, sodium chloride (sodium chloride) is used. ) Is used.

Reference numeral 17c designates a water supply wall which is formed in a cylindrical shape so as to extend downward from the bottom surface portion 17a of the accommodating portion 17, and is provided concentrically outside the fixed portion 28 and seals with the water supply tube fitting portion 3e. It is configured so that it can be freely inserted and removed via a packing 6 for use. Further, the water supply wall 17c forms a water supply chamber E with the drain pipe fitting portion 3b, and supplies water from the water supply chamber E into the inner cylinder 14 through a water supply hole 17d serving as a water inflow portion.

Therefore, by providing the drainage pipe fitting portion 3b and the water supply pipe fitting portion 3e on the concentric circles, when the inner cylinder 14 is mounted on the outer cylinder 1, the angle and position of the inner cylinder 14 and the outer cylinder 1 are aligned. Is unnecessary, and the inner cylinder 14 can be easily attached to the outer cylinder 1.

Also, the first electrode 7 and the second electrode 2
0, all the upper ends of the diaphragm 27 are arranged at the same height so that electrolysis can be efficiently performed.

A water supply circuit and a control circuit for the electrolyzed water producing apparatus will be described below with reference to FIG. Reference numeral 40 denotes a first water supply circuit for supplying tap water, which is city water, or water supplied from a water storage tank, to the electrolysis water supply unit 3g. A pressure reducing valve 41, a first water supply circuit 40 is provided in the middle of the first water supply circuit 40. A solenoid valve 42 and a flow sensor 43, which is a flow meter, are provided. Further, 44 is in the middle of the first water supply circuit 40 (first solenoid valve 42
It is a second water supply circuit that branches from the upstream side) and supplies tap water or water supplied from a water storage tank to the water supply connection portion 3f, and a second solenoid valve 45 is provided in the middle of the second water supply circuit 44. Has been.

Further, 46 is a control device which is a microcomputer of the electrolyzed water producing device, and the control device 46 is a ROM 47 which is a storage element, a RAM 48 which is a storage element which stores data at any time, a CPU 49 which is a central processing element, and It is composed of a timer 50 and the like.

Then, the ROM 47 is turned on, the first and second solenoid valves 42 and 45 are opened and closed, the value of the DC voltage applied to the first electrode 7 and the second electrode 20 (hereinafter referred to as applied voltage), 5, the flow rate detected by the flow rate sensor 43 since the use of the replaceable inner cylinder 14 as a cartridge, that is, the acidic water or alkaline water supplied to the electrolyzed water production apparatus and produced by the electrolyzed water production apparatus is started. The time from the turning off of the operation switch, which will be described later, based on the amount (hereinafter referred to as the amount of generated water) to the start of an operation (hereinafter referred to as preliminary electrolysis operation) in which the applied voltage is made smaller than in the steady state and the electrolysis capacity is lower than usual It stores a program for controlling the.

The RAM 48 also stores data such as the flow rate detected by the flow rate sensor 43, that is, the amount of acidic water or alkaline water supplied to the electrolyzed water producing apparatus and produced by the electrolyzed water producing apparatus (hereinafter referred to as produced water quantity). Remember. Further, the CPU 49 controls the opening / closing of the first and second solenoid valves 42, 45, the applied voltage, etc. by the program stored in the ROM 47 based on the data such as the amount of generated water detected by the flow rate sensor 43 and stored in the RAM 48. Further, 51 is an operation switch of the electrolyzed water manufacturing apparatus connected to the control device 46, a timer 50 counts the time after the operation switch 51 is turned off, and 52 is a reset switch also connected to the control device 46. With a switch
This is operated when the salt as the electrolyte C in the inner cylinder 14 is used immediately after being newly replaced, and 53 is a power switch.

The first and second electromagnetic valves 42 and 45, the flow rate sensor 43, etc. are connected to the control device 46 via signal lines.

As shown in FIG. 4, the first electrode 7
The upper end position is higher than the discharge port 2c and higher than the water level H1 between the outer cylinder 1 and the inner cylinder 14.

With the above configuration, the operation of this embodiment will be described below. When the user of the electrolyzed water producing apparatus uses the electrolyzed water producing apparatus for the first time, after turning on the power to the electrolyzed water producing apparatus (inserting the plug into the outlet) and turning on the power switch 53, the control device 46 causes the first electromagnetic wave. Valve 42
An open signal is output to the first solenoid valve 42 and the first solenoid valve 42 is opened. Therefore, tap water or water from a water storage tank or the like is supplied from the electrolysis water supply unit 3g through the first water supply circuit 40, the water level rises from the electrolyzed water generation passage into the electrolysis tank A, and the flow rate sensor 43 Detects the flow rate of 500 ml (milliliter), the first solenoid valve 42 is closed. At this time, the water level rises to a position directly below the discharge port 2c.

Next, the control device 46 outputs an open signal to the second solenoid valve 45, the second solenoid valve 45 is opened, and the water supply connection portion 3f.
From this, tap water or water stored in a water storage tank is supplied, and a water supply operation is performed in the storage portion D in which the salt as the electrolyte C in the inner cylinder 14 is arranged to dissolve the salt.

Although the water level in the inner cylinder 14 rises while the salt is being dipped, when the second electrode 20 begins to be dipped, an open signal is output to the second solenoid valve 45 and at the same time the first electrode 7 is positively added. Since a predetermined negative DC voltage is applied to the second electrode 20, a current starts to flow due to the rise of the water level, and when this is converted to a voltage of 3.2 V or higher, the second time is passed after 25 seconds by the timer 50. Solenoid valve 45
It is configured to close and automatically stop water supply.

Therefore, the water level in the inner cylinder 14 rises, and excess water is discharged from the opening 29a to the outside of the inner cylinder 14 and the outer cylinder 1 through the drain cylinder 29 and the drain connection 3d.

Next, after this water supply is stopped, every time the user turns on the operation switch 51, the control device 46 operates and the first
A predetermined DC voltage (for example, a voltage of 15 V and a current of 10 A) that is positive to the electrode 7 and negative to the second electrode 20 is applied, the CPU 49 operates, and the control device 46 outputs an open signal to the first solenoid valve 42. Then, the first solenoid valve 42 opens. For this reason, tap water or water is supplied from a water storage tank or the like from the electrolysis water supply unit 3g through the first water supply circuit 40.
The inner and outer peripheral surfaces of the electrode 7 rise and are electrolyzed with the second electrode 20 through the diaphragm 27 to generate acidic water, that is, acidic water having a high chlorine concentration, a slightly high pH and a low acidity. The level H1 of the electrolyzed water becomes the upper end level of the discharge port 2c and is discharged to the outside through the discharge port 2c.

When the operation switch 51 is turned on, CP
U49 operates, the timer 50 starts counting, the control device 46 outputs an open signal to the second solenoid valve 45, and the second solenoid valve 45 opens. Therefore, water is supplied from the water supply connection portion 3f, and the water supply operation is performed in the storage portion D. At this time, the water is stored in the storage portion D through the water supply hole 17d of the bottom portion 17a.
By flowing into the inside, the electrolyte C and the electrolyte solution in the inner cylinder 14 are stirred and the salt concentration becomes uniform. Therefore, the concentration of the electrolyte solution around the second electrode 20 and the diaphragm 27 also becomes uniform. In addition, the excess water that overflows is the opening 29a.
Is discharged through the drainage pipe 29 and the drainage connection part 3d, and the agitation in the inner cylinder 14 is reliably performed by the water supply from the water supply hole 17d of the bottom face part 17a and the drainage through the drainage pipe 29 from the opening 29a. . Then, when a predetermined time (for example, 1 second) elapses after the water supply is started by turning on the operation switch 51, the timer 50 counts up and the CPU 49
Is operated, the control device 46 outputs a close signal to the second solenoid valve 45, and the second solenoid valve 45 is closed. Therefore, the water supply to the inner cylinder 14 is stopped.

In this way, water is supplied to the inside of the inner cylinder 14 when the operation switch 51 is turned on when the power is turned on, every time the operation switch 51 is turned on. By supplying water for a short time (for example, 1 second), the electrolyte C and the electrolyte solution in the inner cylinder 14 are agitated, the concentration of the electrolyte solution becomes uniform and stable, and the concentration of the electrolyte solution varies every time the acidic water is supplied. Is avoided and becomes almost uniform. As a result, it becomes possible to stably supply the acidic water.

In the case of the polarity as described above, acidic water is discharged from the discharge port 2c as generated water which is electrolyzed water.
Alkaline water can be discharged by applying a predetermined DC voltage of minus to the first electrode 7 and plus to the second electrode 20.

If it is desired to control the concentration of produced water to be discharged, a pH sensor or the like for measuring and displaying the produced water concentration,
For example, if it is provided downstream of the discharge port 2c and the amount of water supplied to the electrolysis water supply unit 3g is controlled, the water passage time passing through the inside of the electrolytic cell A is variably adjusted, thereby changing the electrolysis time and changing the electrolysis time. The pH can be adjusted.

As described above, when the user turns off the operation switch 51 after the normal electrolysis operation is started, the control device 46 operates and outputs a close signal to the first solenoid valve 42. Therefore, the first electromagnetic valve 42 is closed, the supply of water to the electrolyzed water producing apparatus is stopped, and the supply of acidic water is stopped.

The timer 50 starts counting at the same time when the operation switch 51 is turned off. Then, when the accumulated amount of generated water (acidic water) detected by the flow rate sensor 43 is less than 50 liters for a preset time, for example, as shown in FIG. 6, the timer 50 counts after 1.5 hours. Up, the CPU 49 operates and the control device 46 causes the voltage and current (for example, 2.
5 V, 0.1 A) is applied to the first electrode 7 and the second electrode 20 to start the preliminary electrolysis operation, and this preliminary electrolysis operation continues until the next operation switch 51 is turned on. This allows
The acidity of the acidic water in the electrolytic cell A is maintained, and deterioration of the acidic water is avoided.

When the operation switch 51 is turned on next, the second solenoid valve 45 is opened for a short time as described above, water is supplied into the inner cylinder 14 for a short time, the electrolyte C and the electrolyte solution are stirred, and A direct current voltage (for example, voltage is 15 V, current is 10 A) is applied to the first electrode 7 and the second electrode 20, the first solenoid valve 42 is opened, and when water is supplied, acidic water is supplied immediately.

As described above, a flow path (electrolytic cell A) is formed between the outer cylinder 1 provided with the first electrode 7 therein and the outer cylinder 1 disposed inside the outer cylinder 1. The second electrode 20 is provided above the inside.
And the electrolyte C disposed below and an inner cylinder 14 provided with a diaphragm 27 on the upper side wall, and a discharge port 2c provided in the outer cylinder 1 for discharging the generated electrolytic water to the outside of the apparatus.
By making the position of the upper end of the first electrode 7 higher than the discharge port 2c and higher than the water level H1 between the outer cylinder 1 and the inner cylinder 14, the chlorine concentration is high, the pH is slightly high, and the acidity is low. Acidic water is generated and electrolyzed water can be discharged to the outside through the discharge port 2c.

Next, the second embodiment will be described below with reference to FIGS. 7 to 9, and the same reference numerals as those in the first embodiment have the same functions. The difference from the first embodiment is that the generated electrolyzed water reaches the water level H2 and that the spout plate 30 is provided, which will be described in detail below.

First, the discharge port plate 30 is fixed to an appropriate place on the inner peripheral surface of the outer cylinder upper portion 2 where the discharge port 2c is located, by adhering it to the outer peripheral surface of the first electrode 7 to thereby cause the discharge port. Electrolyzed water having a water level H2 higher than the upper end of the first electrode 7 higher than 2c is discharged through the discharge port plate 30 to the discharge port 2
It is configured to be supplied to c. The water spout plate 30 is formed of a synthetic resin material, and its shape is a substantially U shape in a front view, and an opening portion 31 having an open upper portion and a fixing portion for welding to a wall surface of an inner peripheral surface of the outer cylinder upper portion 2. 32 is formed. Further, the outer peripheral surface of the outer pipe upper portion 2 of the water spout plate 30 and the outer peripheral surface of the first electrode 7 are shaped to match the curved surface shapes, and the adhesive surface portions 33 and 34 are widened to form curved surfaces. To ensure close contact. Further, the spout plate 30 may be formed integrally with the outer cylinder upper portion 2c.

Therefore, as described above, every time the user turns on the operation switch 51, the control device 46 operates so that the first electrode 7 has a positive DC voltage and the second electrode 20 has a negative DC voltage (for example, the voltage is 15V, A current of 10 A) is applied, the CPU 49 operates, the control device 46 outputs an open signal to the first solenoid valve 42, and the first solenoid valve 42 opens. Therefore, tap water or water is supplied from a water storage tank or the like from the electrolysis water supply unit 3g via the first water supply circuit 40, and the inner peripheral surface and the outer peripheral surface of the first electrode 7 are raised to raise the entire electrode 7. In a wide range, it is efficiently electrolyzed with the second electrode 20 through the diaphragm 27 to become acidic water, and the acidic water merges above the first electrode 7 and is mixed to make the concentration uniform, and then the water outlet plate. The water level H2 rises above the upper end of 30, and the opening 3
It is supplied from 1 to the discharge port 2c and discharged to the outside. Therefore, by eliminating the retention of water on the inner peripheral surface side of the first electrode 7 as in the first embodiment, the pH is lower and the acidity is higher and the chlorine concentration is higher than in the first embodiment. It is possible to generate low electrolyzed water (acidic water).

As described above, a flow path (electrolytic cell A) is formed between the outer cylinder 1 having the first electrode 7 provided therein and the outer cylinder 1 disposed inside the outer cylinder 1. The second electrode 20 is provided above the inside.
The inner cylinder 14 in which the electrolyte C is disposed below and the diaphragm 27 is provided on the upper side wall, and the upper end of the first electrode 7 is positioned higher than the discharge port 2c, and the outer cylinder 1 and the inner cylinder 1 are provided.
4 is higher than the upper end of the first electrode 7, and the electrolyzed water above the upper end of the first electrode 7 is discharged from the discharge port 2c.
The spout plate 30 to be supplied to the outer cylinder 1 and the inner cylinder 14
Since the water supplied from below rises on the inner and outer peripheral surfaces of the first electrode 7, the water supplied from below efficiently passes through the second electrode 20 and the diaphragm 27 in a wide range of the entire electrode 7. It can be electrolyzed well to generate acidic water, and can be easily supplied to the discharge port 2c provided at a position lower than the water level H2. Therefore, even if the discharge port 2c is provided at a position lower than the upper end of the first electrode 7, the water level position can be easily adjusted only by providing the discharge port plate 30 to maximize the efficiency of electrolysis. It is possible to provide a good electrolyzed water producing apparatus.

The number of parts may be reduced by forming the spout plate 30 integrally with the outer cylinder 1.

Further, by making the water discharge plate 30 detachable, by adjusting the water level position of the electrolytic cell A when the electrolytic water having a high chlorine concentration, a high pH and a low acidity is required, that is, the water discharge port. Remove the plate 30 and set the water level to H
It is only necessary to lower the water level from 2 to H1, and when electrolyzed water having a low chlorine concentration and a low pH and a high acidity is required, a water outlet plate 30 may be attached to raise the water level from H1 to H2. A good electrolyzed water manufacturing apparatus can be provided.

Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention can be modified in various ways without departing from the spirit thereof. It is intended to cover alternatives, modifications or variations.

[0064]

INDUSTRIAL APPLICABILITY As described above, the present invention can meet the demand for obtaining electrolyzed water having high acidity (or alkalinity) and electrolyzed water having lower acidity (or alkalinity). An electrolyzed water manufacturing apparatus can be provided.

[Brief description of drawings]

FIG. 1 is a schematic vertical cross-sectional view illustrating an assembled state of an electrolyzed water producing apparatus.

FIG. 2 is a schematic vertical cross-sectional view illustrating a mounting structure of an electrode plate.

FIG. 3 is a longitudinal sectional view of an essential part for explaining an inner cylinder of the electrolyzed water producing apparatus.

FIG. 4 is a cross-sectional view of a main part of an electrolyzed water manufacturing apparatus.

FIG. 5 is a block diagram illustrating a water supply circuit and a control circuit for the electrolyzed water manufacturing apparatus.

FIG. 6 is a diagram showing the relationship between the cumulative amount of generated water (acidic water) and the time after the supply of generated water is stopped until the preliminary electrolysis operation is started.

FIG. 7 is a schematic vertical cross-sectional view for explaining an assembled state of the electrolyzed water manufacturing apparatus according to the second embodiment.

FIG. 8 is an enlarged view of an essential part for explaining a water outlet plate of the electrolyzed water manufacturing apparatus according to the second embodiment.

FIG. 9 is a cross-sectional view of essential parts of an electrolyzed water manufacturing apparatus according to a second embodiment.

[Explanation of symbols]

1 outer cylinder 2c outlet 7 First electrode 14 Inner cylinder 20 Second electrode 27 diaphragm 30 spout plate A electrolysis tank H1, H2 water level

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Minoru Date             670 Shinfukuji, Oyaku-gun, Gunma Prefecture             1 Within L-Tech Co., Ltd. (72) Inventor Yoshio Iwase             670 Shinfukuji, Oyaku-gun, Gunma Prefecture             1 Within L-Tech Co., Ltd. F-term (reference) 4D061 DA03 DB07 EA02 EB01 EB04                       EB12 EB16 EB19 EB29 EB30                       EB37 EB39 ED12 ED13 GA02                       GA19 GC14

Claims (3)

[Claims] 1. An electrolyzed water production apparatus for electrolyzing to generate acidic water or alkaline water while passing tap water or water supplied from a water storage tank, and an outer cylinder provided with a first electrode therein. An inner cylinder having a channel formed between the outer cylinder and the outer cylinder, a second electrode provided in the upper inside, an electrolyte arranged in the lower, and a diaphragm provided on an upper side wall; The discharge port provided in the outer cylinder for discharging the electrolyzed water and the position of the upper end of the first electrode are higher than the discharge port and higher than the water level between the outer cylinder and the inner cylinder. An electrolyzed water production apparatus characterized by: 2. In an electrolyzed water production apparatus for electrolyzing while supplying tap water or water supplied from a water storage tank to generate acidic water or alkaline water, an outer cylinder provided with a first electrode therein, An inner cylinder which is disposed in the outer cylinder, forms a flow path between the outer cylinder and the inner electrode, has a second electrode provided at an upper portion inside, an electrolyte is provided at a lower portion, and a diaphragm is provided at an upper side wall;
The position of the electrode upper end is higher than the discharge port, and the water level between the outer cylinder and the inner cylinder is higher than the first electrode upper end,
An electrolyzed water manufacturing apparatus, characterized in that a water outlet plate for supplying electrolyzed water above the upper end of the first electrode to the discharge port is provided between the outer cylinder and the inner cylinder. 3. The electrolyzed water manufacturing apparatus according to claim 2, wherein the water discharge port plate is provided inside the outer cylinder.